The celebs will play against Twitch streamers such as LT Zonda, Stodeh, MissEllaCronin and Spamfish. They'll be playing FIFA, Rocket League and either Mario Kart 8 or Super Smash Bros.

Louis Smith plays today; Dele Alli plays tomorrow; Dele Alli plays again with Alex Scott and Adam Smith on Wednesday; and Jamie Laing and Rob Beckett close the campaign on Thursday. Generally streaming happens 5-7pm UK time but is a bit later on Thursday.